.. note::
    :class: sphx-glr-download-link-note

    Click :ref:`here <sphx_glr_download_auto_examples_plot_3_1_4_atoms_hamming_stft.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_plot_3_1_4_atoms_hamming_stft.py:


============================================================
STFT of Gaussian Wave Packets with a Hamming Analysis Window
============================================================

This example demonstrates the construction of a signal containing two transient
components, having the same Gaussian amplitude modulation and the same
frequency, but different time centers. It also shows the effect of a Hamming
window function when used with th STFT.

Figure 3.7 from the tutorial.



.. image:: /auto_examples/images/sphx_glr_plot_3_1_4_atoms_hamming_stft_001.png
    :class: sphx-glr-single-img





.. code-block:: default


    import numpy as np
    import matplotlib.pyplot as plt
    from tftb.generators import atoms
    from scipy.signal import hamming
    from tftb.processing.linear import ShortTimeFourierTransform

    coords = np.array([[45, .25, 32, 1], [85, .25, 32, 1]])
    sig = atoms(128, coords)
    x = np.real(sig)
    window = hamming(65)
    stft = ShortTimeFourierTransform(sig, n_fbins=128, fwindow=window)
    stft.run()
    stft.plot(show_tf=True, cmap=plt.cm.gray)


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  0.476 seconds)


.. _sphx_glr_download_auto_examples_plot_3_1_4_atoms_hamming_stft.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download

     :download:`Download Python source code: plot_3_1_4_atoms_hamming_stft.py <plot_3_1_4_atoms_hamming_stft.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: plot_3_1_4_atoms_hamming_stft.ipynb <plot_3_1_4_atoms_hamming_stft.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_